Well depending which of my multiverse you are from, he was either frozen in solid ice, or was lost in some crazy time stream. Besides, I think they've tried to make it again and failed multiple times.

[He shrugs]

Well, I my cancer was halted by the implementation of the experiment. I worked on a team for awhile until I had killed one of my team members. After that I was designated a failure, and kept around as a sort of experimental plaything for a couple of sick doctors. They would cut into folks just to see how they would tick, no other real reason. They seemed to get off on the pain. They kept us alive as long as they could just because we were entertainment for them. There was a running bet amongst us of how long each of us would live. A deadpool as it were.

After killing those bastards, and anyone who was keeping that hell hole running, I took the name Deadpool and it has stuck ever since.

[He'll gloss over the falling in love with Death. That is something close to his heart. No one really could ever understand it]